Quarterly report pursuant to Section 13 or 15(d)

Debt - Schedule of Debt (Details)

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Debt - Schedule of Debt (Details) - USD ($)
Sep. 30, 2021
Aug. 31, 2021
Feb. 28, 2021
Dec. 31, 2020
Debt Instrument [Line Items]        
Total senior notes $ 15,988,000,000     $ 15,006,000,000
Mortgage notes payable 0     50,000,000
Construction loan payable 188,000,000     180,000,000
Finance leases and other 495,000,000     153,000,000
Debt issuance costs (177,000,000)     (157,000,000)
Total debt 18,839,000,000     16,779,000,000
Less current portion (245,000,000)     (97,000,000)
 Long-term debt 18,594,000,000     16,682,000,000
Revolving credit agreement        
Debt Instrument [Line Items]        
Credit facility 150,000,000     97,000,000
Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount   $ 1,800,000,000    
Term loan facility        
Debt Instrument [Line Items]        
Credit facility 2,195,000,000     1,450,000,000
$2,200 million 4.75% Senior Notes due January 15, 2025 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 2,200,000,000   $ 2,200,000,000  
Interest rate 4.75%   4.75%  
Senior notes $ 0     2,230,000,000
$1,800 million 5.375% Senior Notes due June 1, 2026 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 1,800,000,000      
Interest rate 5.375% 5.375%    
Senior notes $ 0     1,800,000,000
$750 million 5.375% Senior Notes due August 15, 2026 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 750,000,000      
Interest rate 5.375%      
Senior notes $ 0     794,000,000
$2,500 million 4.25% Senior Notes due December 15, 2027 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 2,500,000,000      
Interest rate 4.25%      
Senior notes $ 2,484,000,000     2,482,000,000
$2,300 million 2.45% Senior Notes due July 15, 2028 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 2,300,000,000      
Interest rate 2.45%      
Senior notes $ 2,304,000,000     0
$3,500 million 4.625% Senior Notes due December 15, 2029 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 3,500,000,000      
Interest rate 4.625%      
Senior notes $ 3,500,000,000     3,500,000,000
$2,000 million 3.375% Senior Notes due February 15, 2030 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 2,000,000,000      
Interest rate 3.375%      
Senior notes $ 2,000,000,000     2,000,000,000
$2,200 million 3.00% Senior Notes due October 15, 2030 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 2,200,000,000      
Interest rate 3.00%      
Senior notes $ 2,200,000,000     2,200,000,000
$2,200 million 2.50% Senior Notes due March 1, 2031 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 2,200,000,000   $ 2,200,000,000  
Interest rate 2.50%   2.50%  
Senior notes $ 2,200,000,000     0
$1,300 million 2.625% Senior Notes due August 1, 2031 | Senior Notes        
Debt Instrument [Line Items]        
Debt, face amount $ 1,300,000,000 $ 1,300,000,000    
Interest rate 2.625% 2.625%    
Senior notes $ 1,300,000,000     $ 0